A woman who accused a Catoosa County, Ga., assistant principal of assaulting her son at school has been arrested on charges that she lied to police.

Davida Caylor made a complaint Feb. 8 against Heritage High School Assistant Principal Eric Beagles alleging he had hurt her son at school, Sheriff Gary Sisk said in a news release.

The Catoosa County Schools conducted an internal investigation into the Feb. 6 incident.

Schools spokeswoman Marissa Brower said the allegation was that Beagles bruised the teen's hand.

"The student was in the assistant principal's office for a discipline issue. The student was not happy with the discipline, and he reached across the assistant principal's desk and grabbed his phone," she said. "The [assistant] principal reached out and put the phone down while [the student's] hand was on it."

Sisk said that after a separate investigation, his office and the Georgia Bureau of Investigation decided the allegation was unfounded.

Brower said district officials found evidence that showed "the incident between the student and principal did not result in the injury."

When the investigation was turned over to prosecutors, they decided Caylor should be charged with giving false statements and tampering with evidence.

Deputies went to Caylor's house on Rolling Hills Drive but she refused to be arrested, authorities said. Sisk said Caylor then was charged with obstruction of a police officer and a second count of tampering with evidence.

She is in the Catoosa County Jail awaiting an initial court appearance.